In order to help your programming or testing tasks, FYIcenter.com has designed this
online tool for you to validate any given domain name.

All you need to do is to enter a domain name
and click the "Validate" button.
Validation result will be displayed in the result area.

Domain Name:

✍: FYIcenter.com

A

Validation result by FYIcenter.com - Domain Name:

Specified Domain Name: Valid ✔

Domain Name: sqa.fyicenter.com

What is a valid domain name?

A domain name is an identification of a unique computer system on the Internet.
A complete domain name consists of one or more subdomain names and one top-level domain name
separated by dots (.). For example, sqa.fyicenter.com is a complete domain name.

A complete domain name is valid if it meets the following criteria:

A complete domain name must have one or more subdomain names and one top-level domain name.

A complete domain name must use dots (.) to separate domain names.

Domain names must use only alphanumeric characters and dashes (-).

Domain names must not begin or end with dashes (-).

Domain names must mot have more than 63 characters.

The top-level domain name must be one of the predefined top-level domain names, like (com), (org), or (ca)